Multifunctional welding clamp for automobile seat framework

Abstract

The invention discloses a multifunctional welding clamp for an automobile seat framework, and belongs to the technical field of automobile seat framework welding, the multifunctional welding clamp comprises a clamp plate, a placing groove is formed in the left side of the upper end of the clamp plate, a seat bottom limiting mechanism is arranged in the placing groove, and a seat framework body is arranged on the upper portion of the seat bottom limiting mechanism; and a seat side end limiting mechanism is arranged in the middle of the right side of the upper end of the clamp plate, the seat side end limiting mechanism is arranged on the right side of the seat framework body, the seat bottom limiting mechanism is used for limiting positioning holes in the lower ends of the seat framework bodies of different sizes, and the seat side end limiting mechanism is used for limiting the side ends of the seat framework bodies. By means of the seat bottom limiting mechanism, bottom positioning hole inserting and limiting actions can be conducted on seat framework bodies of different sizes, and the applicability and stability of the device are improved.

Description

Technical Field

[0001] This invention relates to the field of automotive seat frame welding technology, specifically a multifunctional welding fixture for automotive seat frames. Background Technology

[0002] With the rapid development of the automotive industry, consumers' demands for vehicle safety, comfort, and personalization are increasing. As a key component that comes into direct contact with drivers and passengers, the design and manufacturing quality of car seats directly impacts the driving experience and safety. In the production process of car seats, the welding process of the seat frame is particularly critical, as it not only affects the overall strength and durability of the seat but also influences the efficiency and precision of subsequent assembly processes. Existing technologies require positioning the car seat frame before welding, often by positioning the left and right sides. This positioning can lead to instability on the welding fixture, causing the car seat frame to easily fall off and reducing welding efficiency. To address this, we propose a multi-functional welding fixture for car seat frames. Summary of the Invention

[0003] The purpose of this invention is to provide a multifunctional welding fixture for automotive seat frames to solve the problems mentioned in the background art.

[0004] To achieve the above objectives, the present invention provides the following technical solution: a multifunctional welding fixture for an automotive seat frame, comprising a fixture plate, a placement groove on the upper left side of the fixture plate, a seat bottom limiting mechanism disposed in the placement groove, a seat frame body disposed above the seat bottom limiting mechanism, a seat side limiting mechanism disposed in the middle of the upper right side of the fixture plate, the seat side limiting mechanism being disposed on the right side of the seat frame body, the seat bottom limiting mechanism being used to limit the positioning holes at the lower end of seat frame bodies of different sizes, and the seat side limiting mechanism being used to limit the side end of the seat frame body.

[0005] Preferably, the seat bottom limiting mechanism includes a first stepper motor, with a clamping plate fixedly mounted at one end of the first stepper motor near the clamping plate. A rotating rod is fixedly mounted at the output end of the first stepper motor. Two moving strips are threadedly connected to the outer end of the rotating rod, and the rotating rod passes through the moving strips. A moving plate is fixedly mounted at the upper end of each moving strip. Moving slots are formed at the ends of the two moving plates that are far apart from each other. A second stepper motor is fixedly mounted at the end of each of the two moving plates that are close to each other. A rotating gear is fixedly mounted at the output end of the second stepper motor. Two centrally symmetrically arranged moving racks are meshed at the outer end of the rotating gear. A moving seat is fixedly mounted at the outer end of each moving rack. A moving slot is slidably connected to the lower end of the moving seat. A positioning pin is fixedly mounted at the upper end of each moving seat. Two symmetrically arranged guide rods are slidably connected to the surface of each moving strip. Each guide rod passes through the moving strip, and placement slots are fixedly mounted on both sides of each guide rod.

[0006] Preferably, the seat side limiting mechanism includes two symmetrically arranged vertical bars, each with a clamp plate fixedly installed at its lower end, a C-shaped frame fixedly installed at its upper end, springs fixedly installed on both inner sidewalls of the C-shaped frame, a limiting plate fixedly installed at one end of each spring that is close to each other, and an operating column fixedly installed at one end of each limiting plate that is far from each other.

[0007] Preferably, the outer end of the operating column is slidably connected to a C-shaped frame, and the spring is sleeved on the operating column.

[0008] Preferably, the outer end of the output terminal of the second stepper motor is rotatably connected to the moving plate via a bearing, and the output terminal of the second stepper motor passes through the moving plate.

[0009] Preferably, the outer end of the rotating rod has two symmetrically arranged threaded grooves, and the end of the rotating rod away from the first stepper motor is rotatably connected to the clamp plate through a bearing.

[0010] Preferably, each of the movable racks is slidably connected to a movable plate at its outer end, and each of the movable racks passes through the movable plate.

[0011] Preferably, the placement slot is connected to a plurality of evenly distributed slots formed on the fixture plate, the slots penetrating the fixture plate.

[0012] Compared with the prior art, the beneficial effects of the present invention are: 1. This invention, through a seat bottom limiting mechanism, enables the power supply and control of the first and second stepper motors via an external power source and controller. The output of the first stepper motor drives a rotating rod to rotate, which in turn moves two symmetrically arranged moving bars away from each other. These moving bars then move a moving plate, the second stepper motor, a rotating gear, a moving rack, a moving seat, and a positioning pin. When the positioning pin is horizontally aligned with the positioning hole at the bottom of the seat frame, the output of the second stepper motor drives the rotating gear to rotate clockwise. This rotating gear directly moves the two moving racks away from each other, and the moving racks move the moving seat and positioning pin. When the positioning pin is horizontally aligned with the positioning hole at the bottom of the seat frame, the seat frame can be placed on the four positioning pins. This invention allows for bottom positioning hole insertion and limiting of seat frames of different sizes, improving the applicability and stability of the device.

[0013] 2. This invention, through a seat side-end limiting mechanism, enables the limiting action of the seat frame body's side end. When the right end of the seat frame body is required to contact the inner end of the C-shaped frame, the operating column can be pulled outwards. This causes the limiting plate to move outwards, compressing the spring. The position of the right side of the seat frame body is then adjusted again. When both the front and rear ends of the right side of the seat frame body are inside the limiting plate, the pulling action of the operating column can be released. The spring returns to its original length, directly causing the limiting plate to abut against the front and rear sides of the seat frame body's side end, further improving the stability of the seat frame body during subsequent welding. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 This is a schematic diagram of the seat bottom limiting mechanism of the present invention; Figure 3 This is a schematic diagram of the seat side limiting mechanism of the present invention; Figure 4 This is a schematic diagram of the placement groove structure of the present invention.

[0015] In the diagram: 1. Fixture plate; 2. Placement slot; 3. Slot; 4. Seat bottom limiting mechanism; 41. First stepper motor; 42. Rotating rod; 43. Moving bar; 44. Guide rod; 45. Moving plate; 46. Moving slot; 47. Second stepper motor; 48. Rotating gear; 49. Moving rack; 410. Moving seat; 411. Positioning pin; 5. Seat side limiting mechanism; 51. Vertical bar; 52. C-shaped frame; 53. Spring; 54. Limiting plate; 55. Operating column; 6. Seat frame body. Detailed Implementation

[0016] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0017] Please see Figure 1-4 This invention provides a technical solution: a multifunctional welding fixture for an automobile seat frame, including a fixture plate 1, a placement groove 2 on the upper left side of the fixture plate 1, a seat bottom limiting mechanism 4 in the placement groove 2, a seat frame body 6 on the upper part of the seat bottom limiting mechanism 4, a seat side limiting mechanism 5 on the middle of the upper right side of the fixture plate 1, the seat side limiting mechanism 5 is located on the right side of the seat frame body 6, the seat bottom limiting mechanism 4 is used to limit the positioning holes at the lower end of the seat frame body 6 of different sizes, and the seat side limiting mechanism 5 is used to limit the side of the seat frame body 6.

[0018] In this embodiment, the seat bottom limiting mechanism 4 includes a first stepper motor 41. The clamping plate 1 is fixedly installed at one end of the first stepper motor 41 near the clamping plate 1. A rotating rod 42 is fixedly installed at the output end of the first stepper motor 41. Two moving strips 43 are threadedly connected to the outer end of the rotating rod 42. The rotating rod 42 passes through the moving strips 43. A moving plate 45 is fixedly installed at the upper end of each moving strip 43. A moving groove 46 is opened at the two moving plates 45 at the ends away from each other. A second stepper motor 47 is fixedly installed at the two moving plates 45 at the ends close to each other. The output end of the second stepper motor 47 is fixedly mounted with a rotating gear 48. The outer end of the rotating gear 48 is meshed with two centrally symmetrically arranged movable racks 49. The outer end of each movable rack 49 is fixedly mounted with a movable seat 410. The lower end of the movable seat 410 is slidably connected to a movable groove 46. The upper end of each movable seat 410 is fixedly mounted with a positioning pin 411. The surface of each movable bar 43 is slidably connected with two symmetrically arranged guide rods 44. Each guide rod 44 passes through the movable bar 43. The two sides of each guide rod 44 are fixedly mounted with placement grooves 2.

[0019] Specifically, the seat bottom limiting mechanism 4 enables the power supply and control of the first stepper motor 41 and the second stepper motor 47 via an external power supply and controller. The output of the first stepper motor 41 drives the rotating rod 42 to rotate, which in turn drives the two symmetrically arranged moving bars 43 to move away from each other. The moving bars 43 then drive the moving plate 45, the second stepper motor 47, the rotating gear 48, the moving rack 49, the moving seat 410, and the positioning pin 411 to move. When the horizontal position of the positioning pin 411 is aligned with the positioning hole at the bottom of the seat frame body 6, the output of the second stepper motor 47 drives the rotating gear 48 to rotate clockwise. The rotating gear 48 then directly drives the two moving racks 49 to move away from each other. The moving racks 49 then drive the moving seat 410 and the positioning pin 411 to move. When the horizontal and vertical positions of the positioning pins 411 are aligned with the positioning hole at the bottom of the seat frame body 6, the seat frame body 6 can be placed on the four positioning pins 411.

[0020] In this embodiment, the seat side limiting mechanism 5 includes two symmetrically arranged vertical bars 51. Each vertical bar 51 has a clamp plate 1 fixedly installed at its lower end and a C-shaped frame 52 fixedly installed at its upper end. Springs 53 are fixedly installed on both inner side walls of the C-shaped frame 52. Limiting plates 54 are fixedly installed at the ends of the two springs 53 that are close to each other, and operating columns 55 are fixedly installed at the ends of the two limiting plates 54 that are far apart from each other.

[0021] Specifically, the seat side limiting mechanism 5 can be used to limit the side of the seat frame body 6 when a limiting action is required. At this time, the right end of the seat frame body 6 can be adjusted to contact the inner end of the C-shaped frame 52. Then, the operating column 55 can be pulled out. The operating column 55 drives the limiting plate 54 to move outward, which in turn drives the spring 53 to compress. Next, the position of the right side of the seat frame body 6 is adjusted again. When the front and rear ends of the right side of the seat frame body 6 are inside the limiting plate 54, the pulling action of the operating column 55 can be released. At this time, the spring 53 returns to its original length. The spring 53 directly drives the limiting plate 54 to abut against the front and rear sides of the side of the seat frame body 6, which further improves the stability of the seat frame body 6 in the subsequent welding process.

[0022] In this embodiment, the outer end of the operating column 55 is slidably connected to the C-shaped frame 52, and the spring 53 is sleeved on the operating column 55.

[0023] Specifically, ensure that the operating column 55 does not interfere with the C-shaped frame 52 during movement, and ensure that the spring 53 does not interfere with the operating column 55 during compression and rebound.

[0024] In this embodiment, the outer end of the output terminal of the second stepper motor 47 is rotatably connected to the moving plate 45 through a bearing, and the output terminal of the second stepper motor 47 passes through the moving plate 45.

[0025] Specifically, ensure that the output of the second stepper motor 47 does not interfere with the moving plate 45 during rotation.

[0026] In this embodiment, two symmetrically arranged threaded grooves are provided at the outer end of the rotating rod 42, and the end of the rotating rod 42 away from the first stepper motor 41 is rotatably connected to the clamp plate 1 through a bearing.

[0027] Specifically, ensure that the rotating rod 42 does not interfere with the clamp plate 1 during rotation.

[0028] In this embodiment, each movable rack 49 is slidably connected to a movable plate 45 at its outer end, and each movable rack 49 passes through the movable plate 45.

[0029] Specifically, ensure that the moving rack 49 does not tilt during movement.

[0030] In this embodiment, the placement groove 2 is connected to a plurality of evenly distributed slots 3 formed on the fixture plate 1, and the slots 3 penetrate through the fixture plate 1.

[0031] Specifically, the trough 3 allows the debris generated during the welding process to be directly drained away.

[0032] Working principle: When it is necessary to limit the bottom of the seat frame body 6, the first stepper motor 41 and the second stepper motor 47 can be powered and controlled by an external power supply and external controller. At this time, the output of the first stepper motor 41 drives the rotating rod 42 to rotate, which in turn drives the two symmetrically arranged moving bars 43 to move away from each other. At this time, the moving bars 43 drive the moving plate 45, the second stepper motor 47, the rotating gear 48, the moving rack 49, the moving seat 410, and the positioning pin 411 to move. When the horizontal position of the positioning pin 411 is aligned with the positioning hole at the bottom of the seat frame body 6, the output of the second stepper motor 47 drives the rotating gear 48 to rotate clockwise. At this time, the rotating gear 48 directly drives the two moving plates 45 and 46 to move away from each other. The moving racks 49 move away from each other, causing the moving seat 410 and the positioning pins 411 to move. When the horizontal and vertical positions of the positioning pins 411 are aligned with the positioning holes at the bottom of the seat frame body 6, the seat frame body 6 can be placed on the four positioning pins 411. Next, the operating column 55 is pulled outward, causing the limiting plate 54 to move outward and thus compressing the spring 53. Then, the position of the right side of the seat frame body 6 is adjusted again. When the front and rear ends of the right side of the seat frame body 6 are inside the limiting plate 54, the pulling action of the operating column 55 can be released. The spring 53 returns to its original length and directly causes the limiting plate 54 to abut against the front and rear sides of the side of the seat frame body 6.

[0033] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A multifunctional welding fixture for an automobile seat frame, comprising a fixture plate (1), characterized in that: The clamp plate (1) has a placement groove (2) on the upper left side. The placement groove (2) is provided with a seat bottom limiting mechanism (4). The seat frame body (6) is provided on the upper part of the seat bottom limiting mechanism (4). The middle part of the upper right side of the clamp plate (1) is provided with a seat side limiting mechanism (5). The seat side limiting mechanism (5) is located on the right side of the seat frame body (6). The seat bottom limiting mechanism (4) is used to limit the positioning holes at the lower end of the seat frame body (6) of different sizes. The seat side limiting mechanism (5) is used to limit the side of the seat frame body (6).

2. The multifunctional welding fixture for an automobile seat frame according to claim 1, characterized in that: The seat bottom limiting mechanism (4) includes a first stepper motor (41). A clamping plate (1) is fixedly mounted on one end of the first stepper motor (41) near the clamping plate (1). A rotating rod (42) is fixedly mounted on the output end of the first stepper motor (41). Two moving strips (43) are threaded to the outer end of the rotating rod (42). The rotating rod (42) passes through the moving strips (43). A moving plate (45) is fixedly mounted on the upper end of each moving strip (43). Moving slots (46) are provided at the ends of the two moving plates (45) that are far apart from each other. A second stepper motor (47) is fixedly mounted at the ends of the two moving plates (45) that are close to each other. The output end of the second stepper motor (47) is fixedly mounted with a rotating gear (48). The outer end of the rotating gear (48) is meshed with two centrally symmetrically arranged moving racks (49). The outer end of each moving rack (49) is fixedly mounted with a moving seat (410). The lower end of the moving seat (410) is slidably connected to a moving groove (46). The upper end of each moving seat (410) is fixedly mounted with a positioning pin (411). The surface of each moving bar (43) is slidably connected with two symmetrically arranged guide rods (44). Each guide rod (44) passes through the moving bar (43). The two sides of each guide rod (44) are fixedly mounted with placement grooves (2).

3. The multifunctional welding fixture for an automotive seat frame according to claim 1, characterized in that: The seat side limiting mechanism (5) includes two symmetrically arranged vertical bars (51). Each vertical bar (51) has a clamp plate (1) fixedly installed at its lower end. A C-shaped frame (52) is fixedly installed at the upper end of the vertical bar (51). Springs (53) are fixedly installed on both inner side walls of the C-shaped frame (52). Limiting plates (54) are fixedly installed at the ends of the two springs (53) that are close to each other. Operating columns (55) are fixedly installed at the ends of the two limiting plates (54) that are far apart from each other.

4. A multifunctional welding fixture for an automotive seat frame according to claim 3, characterized in that: The outer end of the operating column (55) is slidably connected to the C-shaped frame (52), and the spring (53) is sleeved on the operating column (55).

5. A multifunctional welding fixture for an automotive seat frame according to claim 2, characterized in that: The outer end of the output terminal of the second stepper motor (47) is rotatably connected to the moving plate (45) through the bearing, and the output terminal of the second stepper motor (47) passes through the moving plate (45).

6. A multifunctional welding fixture for an automotive seat frame according to claim 2, characterized in that: The outer end of the rotating rod (42) has two symmetrically arranged threaded grooves. The end of the rotating rod (42) away from the first stepper motor (41) is rotatably connected to the clamp plate (1) through a bearing.

7. A multifunctional welding fixture for an automotive seat frame according to claim 2, characterized in that: Each of the moving racks (49) is slidably connected to a moving plate (45) at its outer end, and each of the moving racks (49) passes through the moving plate (45).

8. A multifunctional welding fixture for an automobile seat frame according to claim 1, characterized in that: The placement slot (2) is connected to a plurality of evenly distributed slots (3) opened on the clamp plate (1), and the slots (3) penetrate the clamp plate (1).

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